Features and Benefits    Documentation    Demo/Purchase  

The mixed-signal capabilities of Fusion allow for a single-chip solution for motor control applications. This Motor Control solution, shown in the figure below, demonstrates the unique advantages of Fusion and its flexibility in controlling varied types of motors on a single platform. The daughter board is designed to work along side the Fusion Starter Kit. It uses the on-board PLL and clock generator of Fusion to target a wide range of motor frequencies. The internal real-time counter (RTC) logs applications and on-board nonvolatile memory (NVM) stores configuration data. The internal analog to digital converter (ADC), located on the Fusion device, performs the Analog control (speed control).

This solution includes the board and a reference deisgn so that you can run a stepper motor or a Brushless DC Motor (BLDC). The software GUI shown below will help you control the stepper motor or the BLDC motor in its different modes.

The figure below shows the block diagram for the motor control IP. The average phase voltage is modulated using a PWM core to control the speed of the motor. A dedicated finite state machine is designed to commutate the motor in both Sensored and Sensorless modes. Hardware controls are provided through switches on the board. A USB serial interface chip is provided on-board that externally interfaces with the USB port through an application software. The software controls the motor parameters through a graphical user interface running on the PC.

• Supported features
  • Stepper motor (4-wire as well as 6-wire)
  • Brushless DC motor (provision for Brushless DC (BLDC) motors: four 1-phase, two 2-phase, one 3-phase, and one 4-phase)
• BLDC sensored drive
  • Hall effect sensors for commutation
• BLDC sensorless drive
  • Using Back EMF (BEMF) from motor phases for auto commutation
• Direction control – clockwise or counter clockwise rotation
• Basic functions
  • Start, stop, step (in case of stepper motor), RPM+/RPM- (increase/decrease RPM), and analog/digital control features
• MOSFETs can drive up to 10 A of current
• Over-current temperature protection
• Four acceleration settings for various motor types
• Supports four pulse-width modulation (PWM) modes
  • PWM on high side, low side, or both sides of MOSFET bridge
  • Freewheeling through MOSFET diodes
• Hardware and software control
  • Switches on the board to control the motor parameter
  • Daughter board interfaces with the PC using the USB interface. Application software to control the motor parameters using a GUI

For a Motor Control demonstration, please contact your local Actel Sales representative.

To purchase a Motor Control solution, please contact Ishnatek.

• Motor Control Daughter Board
  • Partner reference design available as bitstream
  • Software application – GUI interface to motor control
• Optional Accessories
  • Power supply
  • Acrylic box to house the board and motors
  • A pack of 1 stepper motor and 1 BLDC motor and cables
  • Motor control IP as Netlist or RTL